RT Journal Article SR Electronic T1 A rare cause of acute abdominal pain in a young kickboxer JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 990 OP 990 DO 10.1136/bjsm.2009.060178 VO 44 IS 13 YR 2010 UL http://bjsm.bmj.com/content/44/13/990.abstract AB